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EARNINGS AND DIVIDENDS PER SHARE (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Earnings Per Share [Abstract]        
Earnings, net of tax $ 232 $ 256 $ 738 $ 724
Weighted average shares used for basic EPS (in shares) 147,200,000 148,600,000 147,600,000 148,600,000
Dilutive effect of stock options and other awards 1,000,000 1,200,000 1,000,000 1,200,000
Weighted average shares used for diluted EPS (in shares) 148,200,000 149,800,000 148,600,000 149,800,000
Earnings, basic $ 1.57 $ 1.73 $ 5.00 $ 4.87
Earnings, diluted $ 1.56 $ 1.71 $ 4.96 $ 4.83
Underlying options excluded from the computation of diluted earnings per share (in shares) 1,437,767 773,643 1,076,143 264,043
Shares repurchased (in shares) 1,128,869 221,578 1,760,940 656,578
Cash dividends declared (per share) $ 0.46 $ 0.40 $ 1.38 $ 1.20